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Copy pathManager.cs
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648 lines (551 loc) · 19.2 KB
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using Socket.IO.NET35.Logging;
using Socket.IO.NET35.Tasks;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using SOCKETNET35 = Socket.IO.NET35;
namespace Socket.IO.NET35
{
public class Manager : Emitter
{
public enum ReadyStateEnum
{
OPENING,
OPEN,
CLOSED
}
public static readonly string EVENT_OPEN = "open";
public static readonly string EVENT_CLOSE = "close";
public static readonly string EVENT_PACKET = "packet";
public static readonly string EVENT_ERROR = "error";
public static readonly string EVENT_CONNECT_ERROR = "connect_error";
public static readonly string EVENT_CONNECT_TIMEOUT = "connect_timeout";
public static readonly string EVENT_RECONNECT = "reconnect";
public static readonly string EVENT_RECONNECT_ERROR = "reconnect_error";
public static readonly string EVENT_RECONNECT_FAILED = "reconnect_failed";
public static readonly string EVENT_RECONNECT_ATTEMPT = "reconnect_attempt";
public static readonly string EVENT_RECONNECTING = "reconnecting";
public static readonly string EVENT_CONNECT = "connect";
public static readonly string EVENT_DISCONNECT = "disconnect";
public static readonly string EVENT_MESSAGE = "message";
public static readonly string EVENT_DATA = "data";
/*package*/
public ReadyStateEnum ReadyState = ReadyStateEnum.CLOSED;
private bool _reconnection;
private bool SkipReconnect;
private bool Reconnecting;
private bool Encoding;
private bool OpenReconnect;
private int _reconnectionAttempts;
private long _reconnectionDelay;
private long _reconnectionDelayMax;
private long _timeout;
public int Connected;
private int Attempts;
private Uri Uri;
private List<Packet> PacketBuffer;
private Queue<On.IHandle> Subs;
private SocketEngine.Options Options;
private bool AutoConnect;
private Queue<TaskWorker> TasksQueue;
/*package*/
public SocketEngine EngineSocket;
private Parser.Encoder Encoder;
private Parser.Decoder Decoder;
/**
* This ConcurrentDictionary can be accessed from outside of EventThread.
*/
private System.Collections.Concurrent.ConcurrentDictionary<string, Socket> Nsps;
public Manager() : this(null, null)
{
}
public Manager(Uri uri) : this(uri, null)
{
}
public Manager(ManagerOptions opts) : this(null, opts)
{
}
public Manager(Uri uri, ManagerOptions opts)
{
if (opts == null)
{
opts = new ManagerOptions();
}
if (opts.Path == null)
{
opts.Path = "/socket.io";
}
this.Options = opts;
this.Nsps = new System.Collections.Concurrent.ConcurrentDictionary<string, Socket>();
this.Subs = new Queue<On.IHandle>();
this.TasksQueue = new Queue<TaskWorker>();
this.Reconnection(opts.Reconnection);
this.ReconnectionAttempts(opts.ReconnectionAttempts != 0 ? opts.ReconnectionAttempts : int.MaxValue);
this.ReconnectionDelay(opts.ReconnectionDelay != 0 ? opts.ReconnectionDelay : 1000);
this.ReconnectionDelayMax(opts.ReconnectionDelayMax != 0 ? opts.ReconnectionDelayMax : 5000);
this.Timeout(opts.Timeout < 0 ? 20000 : opts.Timeout);
this.ReadyState = ReadyStateEnum.CLOSED;
this.Uri = uri;
this.Connected = 0;
this.Attempts = 0;
this.Encoding = false;
this.PacketBuffer = new List<Packet>();
this.Encoder = new Parser.Encoder();
this.Decoder = new Parser.Decoder();
this.AutoConnect = opts.AutoConnect;
if (AutoConnect)
{
Open();
}
}
private void EmitAll(string eventString, params object[] args)
{
Emit(eventString, args);
foreach (var socket in Nsps.Values)
{
socket.Emit(eventString, args);
}
}
public bool Reconnection()
{
return _reconnection;
}
private Manager Reconnection(bool v)
{
_reconnection = v;
return this;
}
public int ReconnectionAttempts()
{
return _reconnectionAttempts;
}
private Manager ReconnectionAttempts(int v)
{
_reconnectionAttempts = v;
return this;
}
public long ReconnectionDelay()
{
return _reconnectionDelay;
}
private Manager ReconnectionDelay(long v)
{
_reconnectionDelay = v;
return this;
}
public long ReconnectionDelayMax()
{
return _reconnectionDelayMax;
}
private Manager ReconnectionDelayMax(long v)
{
_reconnectionDelayMax = v;
return this;
}
public long Timeout()
{
return _timeout;
}
private Manager Timeout(long v)
{
_timeout = v;
return this;
}
private void MaybeReconnectOnOpen()
{
if (!this.OpenReconnect && !this.Reconnecting && this._reconnection)
{
this.OpenReconnect = true;
this.Reconnect();
}
}
public Manager Open()
{
return Open(null);
}
private Manager Open(IOpenCallback fn)
{
var log = LogManager.GetLogger(GlobalHelper.CallerName());
log.Info(string.Format("Manager readyState {0}", ReadyState));
if (ReadyState == ReadyStateEnum.OPEN)
{
return this; // allready open
}
log.Info(string.Format("Manager opening {0}", Uri));
EngineSocket = new Engine(Uri, Options);
SocketEngine socket = EngineSocket;
ReadyState = ReadyStateEnum.OPENING;
var openSub = SOCKETNET35.On.Create(socket, EVENT_OPEN, new ListenerImpl(() =>
{
OnOpen();
if (fn != null)
{
fn.Call(null);
}
}));
var errorSub = SOCKETNET35.On.Create(socket, EVENT_ERROR, new ListenerImpl((data) =>
{
log.Info("connect_error");
Cleanup();
ReadyState = ReadyStateEnum.CLOSED;
EmitAll(EVENT_CONNECT_ERROR, data);
if (fn != null)
{
var err = new SocketException("Connection error", data is Exception ? (Exception)data : null);
fn.Call(err);
}
MaybeReconnectOnOpen();
}));
if (_timeout >= 0)
{
var timeout = (int)_timeout;
log.Info(string.Format("connection attempt will timeout after {0}", timeout));
var timer = EasyTimer.SetTimeout(() =>
{
var log2 = LogManager.GetLogger(GlobalHelper.CallerName());
log2.Info("Manager Open start");
log2.Info(string.Format("connect attempt timed out after {0}", timeout));
openSub.Destroy();
socket.Close();
socket.Emit(EVENT_ERROR, new SocketException("timeout"));
EmitAll(EVENT_CONNECT_TIMEOUT, timeout);
log2.Info("Manager Open finish");
}, timeout);
//var taskWorker = new TaskWorker(this);
//taskWorker.QueueWorkerWithDelay(
// TasksQueue,
// null,
// (x, e) =>
// {
// var log2 = LogManager.GetLogger(GlobalHelper.CallerName());
// log2.Info("Manager Open start");
// log2.Info(string.Format("connect attempt timed out after {0}", timeout));
// openSub.Destroy();
// socket.Close();
// socket.Emit(EVENT_ERROR, new SocketException("timeout"));
// EmitAll(EVENT_CONNECT_TIMEOUT, timeout);
// log2.Info("Manager Open finish");
// },
// (x, e) =>
// {
// //action complete
// },
// (e) =>
// {
// //display error
// },
// (x, e) =>
// {
// // progress change
// },
// timeout);
lock (Subs)
{
Subs.Enqueue(new On.TimeoutActionHandle(timer.Stop));
//Subs.Enqueue(new On.ActionHandleImpl(taskWorker.Stop));
}
}
lock (Subs)
{
Subs.Enqueue(openSub);
Subs.Enqueue(errorSub);
}
EngineSocket.Open();
return this;
}
private void OnOpen()
{
var log = LogManager.GetLogger(GlobalHelper.CallerName());
log.Info("open");
Cleanup();
ReadyState = ReadyStateEnum.OPEN;
Emit(EVENT_OPEN);
var socket = EngineSocket;
var sub = SOCKETNET35.On.Create(socket, EVENT_DATA, new ListenerImpl((data) =>
{
log.Info("Manager.OnOpen EVENT_DATA " + data);
if (data is string)
{
OnData((string)data);
}
else if (data is byte[])
{
Ondata((byte[])data);
}
}));
lock (Subs)
{
Subs.Enqueue(sub);
}
sub = SOCKETNET35.On.Create(this.Decoder, Parser.Decoder.EVENT_DECODED, new ListenerImpl((data) =>
{
OnDecoded((Packet)data);
}));
lock (Subs)
{
Subs.Enqueue(sub);
}
sub = SOCKETNET35.On.Create(socket, EVENT_ERROR, new ListenerImpl((data) =>
{
OnError((Exception)data);
}));
lock (Subs)
{
Subs.Enqueue(sub);
}
sub = SOCKETNET35.On.Create(socket, EVENT_CLOSE, new ListenerImpl((data) =>
{
OnClose((string)data);
}));
lock (Subs)
{
Subs.Enqueue(sub);
}
}
private void OnData(string data)
{
this.Decoder.Add(data);
}
private void Ondata(byte[] data)
{
this.Decoder.Add(data);
}
private void OnDecoded(Packet packet)
{
this.Emit(EVENT_PACKET, packet);
}
private void OnError(Exception err)
{
var log = LogManager.GetLogger(GlobalHelper.CallerName());
log.Error("error", err);
this.EmitAll(EVENT_ERROR, err);
}
public Socket Socket(string nsp)
{
if (Nsps.ContainsKey(nsp))
{
return Nsps[nsp];
}
var socket = new Socket(this, nsp);
Nsps.TryAdd(nsp, socket);
socket.On(SOCKETNET35.Socket.EVENT_CONNECT, new ListenerImpl(() =>
{
Connected++;
}));
return socket;
}
internal void Destroy(Socket socket)
{
--Connected;
if (Connected == 0)
{
Close();
}
var item = TasksQueue.FirstOrDefault();
if (item != null)
item.CancelAll(TasksQueue);
}
internal void Packet(Packet packet)
{
var log = LogManager.GetLogger(GlobalHelper.CallerName());
log.Info(string.Format("writing packet {0}", packet));
if (!Encoding)
{
Encoding = true;
Encoder.Encode(packet, new Parser.Encoder.CallbackImp((data) =>
{
var encodedPackets = (object[])data;
foreach (var packet1 in encodedPackets)
{
if (packet1 is string)
{
EngineSocket.Write((string)packet1);
}
else if (packet1 is byte[])
{
EngineSocket.Write((byte[])packet1);
}
}
Encoding = false;
ProcessPacketQueue();
}));
}
else
{
PacketBuffer.Add(packet);
}
}
private void ProcessPacketQueue()
{
if (this.PacketBuffer.Count > 0 && !this.Encoding)
{
Packet pack = this.PacketBuffer[0];
PacketBuffer.Remove(pack);
this.Packet(pack);
}
}
private void Cleanup()
{
lock (Subs)
{
foreach (var sub in Subs)
{
sub.Destroy();
}
}
}
public void Close()
{
this.SkipReconnect = true;
this.EngineSocket.Close();
// Clean/Stop Subs
foreach (var sub in Subs)
{
sub.Destroy();
}
var item = TasksQueue.FirstOrDefault();
if (item != null)
item.CancelAll(TasksQueue);
}
private void OnClose(string reason)
{
var log = LogManager.GetLogger(GlobalHelper.CallerName());
log.Info("OnClose");
Cleanup();
ReadyState = ReadyStateEnum.CLOSED;
Emit(EVENT_CLOSE, reason);
if (_reconnection && !SkipReconnect)
{
Reconnect();
}
}
private void Reconnect()
{
var log = LogManager.GetLogger(GlobalHelper.CallerName());
if (Reconnecting)
{
return;
}
Attempts++;
if (Attempts > _reconnectionAttempts)
{
log.Info("reconnect failed");
EmitAll(EVENT_RECONNECT_FAILED);
Reconnecting = false;
}
else
{
var delay = Attempts * ReconnectionDelay();
delay = Math.Min(delay, ReconnectionDelayMax());
log.Info(string.Format("will wait {0}ms before reconnect attempt", delay));
Reconnecting = true;
var timer = EasyTimer.SetTimeout(() =>
{
var log2 = LogManager.GetLogger(GlobalHelper.CallerName());
log2.Info("EasyTimer Reconnect start");
log2.Info(string.Format("attempting reconnect"));
EmitAll(EVENT_RECONNECT_ATTEMPT, Attempts);
EmitAll(EVENT_RECONNECTING, Attempts);
Open(new OpenCallbackImp((err) =>
{
if (err != null)
{
log.Error("reconnect attempt error", (Exception)err);
Reconnecting = false;
Reconnect();
EmitAll(EVENT_RECONNECT_ERROR, (Exception)err);
}
else
{
log.Info("reconnect success");
OnReconnect();
}
}));
log2.Info("EasyTimer Reconnect finish");
}, (int)delay);
//var taskWorker = new TaskWorker(this);
//taskWorker.QueueWorkerWithDelay(
// TasksQueue,
// null,
// (x, e) => {
// var log2 = LogManager.GetLogger(GlobalHelper.CallerName());
// log2.Info("EasyTimer Reconnect start");
// log2.Info(string.Format("attempting reconnect"));
// EmitAll(EVENT_RECONNECT_ATTEMPT, Attempts);
// EmitAll(EVENT_RECONNECTING, Attempts);
// Open(new OpenCallbackImp((err) =>
// {
// if (err != null)
// {
// log.Error("reconnect attempt error", (Exception)err);
// Reconnecting = false;
// Reconnect();
// EmitAll(EVENT_RECONNECT_ERROR, (Exception)err);
// }
// else
// {
// log.Info("reconnect success");
// OnReconnect();
// }
// }));
// log2.Info("EasyTimer Reconnect finish");
// },
// (x, e) => {
// //action complete
// },
// (e) => {
// //display error
// },
// (x, e) => {
// // progress change
// },
// (int)delay);
//TasksQueue.Enqueue(taskWorker);
lock (Subs)
{
Subs.Enqueue(new On.TimeoutActionHandle(timer.Stop));
//Subs.Enqueue(new On.ActionHandleImpl(taskWorker.Stop));
}
}
}
private void OnReconnect()
{
int attempts = this.Attempts;
this.Attempts = 0;
this.Reconnecting = false;
this.EmitAll(EVENT_RECONNECT, attempts);
}
public interface IOpenCallback
{
void Call(Exception err);
}
public class OpenCallbackImp : IOpenCallback
{
private Action<object> Fn;
public OpenCallbackImp(Action<object> fn)
{
Fn = fn;
}
public void Call(Exception err)
{
Fn(err);
}
}
}
public class Engine : SocketEngine
{
public Engine(Uri uri, Options opts) : base(uri, opts)
{
}
}
public class ManagerOptions : SocketEngine.Options
{
public bool Reconnection = true;
public int ReconnectionAttempts = 3;
public long ReconnectionDelay;
public long ReconnectionDelayMax;
public long Timeout = -1;
public bool AutoConnect = true;
}
}